Marks, 38, has been with the Spurs in an executive capacity for the past two seasons, most recently serving as director of basketball operations and general manager of their D-League affiliate, the Austin Toros. The new gig will surely allow Marks to maintain his role as Tim Duncan’s pre-game workout partner.

Marks played 48 games for the Spurs from 2005 through 2007. They were one of six teams the good-natured New Zealand native played for over 11 NBA seasons, during which he averaged 2.8 points per game.

Brown left to take over as head coach in Philadelphia, the second defection of the summer after lead assistant Mike Budenholzer accepted the No. 1 job in Atlanta. Former Indiana assistant Jim Boylen filled the latter vacancy, making Ime Udoka the dean of Popovich’s support staff in his second year with the Spurs.